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A hollow metal sphere of radius 5 cm is ...

A hollow metal sphere of radius `5 cm` is charged so that the potential on its surface is `10 V`. The potential at the centre of the sphere is

A

0 V

B

10 V

C

Same as at point 5 cm away from the surface

D

Same as at point 25 cm away from the surface

Text Solution

Verified by Experts

The correct Answer is:
A
For a metal a conductor –
`E_("inside") =0`
Since, `E=(-dV)/(dr) implies (dV)/(dr) = 0`
`implies V =` constant inside the conductor.
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